Mechanical Engineering MCQs

A. Toughness
B. Tensile strength
C. Capability of being cold worked
D. Hardness

A. 50%
B. 25%
C. 0%
D. 15%

A. Load/original cross-sectional area and change in length/original length
B. Load/instantaneous cross-sectional area original area and log
C. Load/instantaneous cross-sectional area and change in length/original length
D. Load/instantaneous area and instantaneous area/original area

A. Same
B. Half
C. One-third
D. Two-third

A. It does not exist
B. It is more sensitive to changes in both metallurgical and mechanical conditions
C. It gives, a more accurate picture of the ductility
D. It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.

A. Principal stress
B. Tensile stress
C. Compressive stress
D. Shear stress

A. 2.1xl05 kg/cm2
B. 2.1 x 106 kg/cm2
C. 2.1 x 107 kg/cm2
D. 0.1 xlo6 kg/cm2 (<?) 3.8 x 106 kg/cm2

A. Slenderness ratio and area of cross-section
B. Posison’s ratio and modulus of elasticity
C. Slenderness ratio and modulus of elasticity
D. Slenderness ratio, area of cross-section and modulus of elasticity

A. Plasticity
B. Elasticity
C. Ductility
D. Malleability

A. Longitudinal stress and longitudinal strain
B. Longitudinal stress and lateral stress
C. Lateral stress and longitudinal stress
D. Lateral stress and lateral strain